Files
gstack/lib
garrytanandcapy-ai[bot] cd12cb207a fix(autoplan): bounded, append-tolerant owned-journal read (A2)
The publication guard no longer reads the whole parent journal or refuses
it at 32 MiB. lib/claude-owned-journal.ts streams the bytes present at open
to the last complete line (pass one), keeps a content-free index per record
and decides ownership, ancestry and causal order on it with the same checks
and reason codes as before. Pass two reloads in full only what the
evaluation reads (autoplan/bin/guard-journal.ts): every literal init and its
result, the current call, and inside the invocation window (from the latest
human turn at or before the bound chain's first init) guarded and
close-packet Read results, structured Bash results, error results, assistant
text after the first close Read and active-plan mutations, plus the earlier
Read a dedup reply cites even before the window (ENG-4).

- lib/claude-journal-records.ts: per-record event extraction, record
  metadata and the causal-order checks, shared by readPlanCountTranscript
  and the bounded reader. The batch reader keeps its whole-file read and cap.
- Appends after open never fail a read; same device and inode and no
  shrink are required (identity). A second read in one hook invocation must
  hash bytes [0, first size) the same, or it is `rewritten` (UC1 unverified);
  the unrecognized-shape double read uses that prefix hash. `changing` is
  removed (REMOVED_CODES; its anchor stays).
- OWNED_RECORD_MAX_BYTES (32 MiB): only one record over it is too_large.
  OWNED_RETAINED_MAX_BYTES (32 MiB): over it is the new oversized_invocation
  fallback denial. GSTACK_TRANSCRIPT_TEST_MAX_BYTES and
  GSTACK_TRANSCRIPT_TEST_RETAINED_BYTES can only lower them.
- ENG-5: evaluation groups uses and results by tool id once (no per-tool
  rescans).

CEO-25 / ENG-5 spike (120 MiB synthetic, 31,242 records, 4 vCPU Linux,
Bun 1.4.2): a full streaming rescan (parse every line, small index, sha256)
took 254-326 ms at 147-161 MiB peak RSS; a pass-one index cache under the
state root (load cached index, verify a 64 KiB tail hash, parse the tail)
took 26-29 ms at 47 MiB. The rescan meets the 1 s budget, so the cache is
not adopted: it would add trusted persistent state and invalidation for no
budget need. A backward tail read cannot prove competing_root or cycle, so
it was not a candidate.

Co-authored-by: capy-ai[bot] <230910855+capy-ai[bot]@users.noreply.github.com>
2026-10-07 21:03:31 +00:00
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